On July 28, after months of hiding their engagement, Bachelorette Andi Dorfman, 27, and new fiancé Josh Murray, 29, came on After the Final Rose to show of their love. A googly-eyed Josh kept his former baseballer arms wrapped tightly around the petite brunette, as if to let the world know, “She’s mine!” When host Chris Harrison noted that they couldn’t stop canoodling, Andi insisted, “We’re in love!”

But insiders say that there’s a less romantic reason Josh was holding on so tight. “There are major jealousy, control and trust issues,” reveals a source. “Josh is insecure — and Andi is finding it really unattractive.” Josh’s jealousy escalated on ATFR, when Andi’s runner-up, Nick Viall, revealed that he’d slept with Andi on the show. “Josh is still disgusted,” says a source. “He tries to act laid-back, but the whole thing is really bugging him.”

Josh’s hang-ups were glaringly obvious on the show. In one episode, he revealed to Andi that an ex-girlfriend had been threatened by his athlete lifestyle and assumed he was cheating on her — so she went ahead and cheated on him. “Have you ever been cheated on before?” he asked. “It’s the worst. It should never happen.” On a later episode, Josh was the only guy perturbed by Andi’s request that the men take lie detector tests. “I thought Andi trusted me!” he lamented. And now it’s Andi who’s not feeling the trust. “Andi feels like Josh doesn’t trust her in the slightest,” says an insider.

Insiders say those episodes were a sign of things to come. “Josh has a pretty jealous personality and a bad temper,” says a source, who adds that while doing interviews on their post-finale press tour, Andi hated the fact that “Josh would take control and answer questions for her. Sometimes he barely let her get a word in. She’s had to tell him to let her speak for herself a number of times.” When the media blitz dies down, sources say, the couple have some serious kinks to iron out before they head down the aisle. “They’re learning a lot about each other,” says an insider. “Not necessarily good things.”